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Reposeful Asagi

#138c7b
Notes

Reposeful Asagi (#138C7B) is a deep teal with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (172°, 76%, 31%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#138c7b
RGB
rgb(19, 140, 123)
HSL
hsl(172, 76%, 31%)
HWB
hwb(172 7% 45%)
OKLCH
oklch(57.5% 0.101 179.9)
P3
color(display-p3 0.2526 0.5408 0.4839)
HSV
hsv(172, 86%, 55%)
LAB
lab(52.20% -34.91 0.30)
LCH
lch(52.20% 34.91 179.51)
CMYK
cmyk(86%, 0%, 12%, 45%)

Etymology

Reposeful
adjective

Latin repōnere, to put back — adjectival suffix -ful. As a color modifier, reposeful implies a clear-and-restful-and-still quality, the calm color of pre-modern monastic cloister-and-refectory meditative-and-silent interior architecture. Sits at the crisp-and-calm end of the grid, parallel to peaceful and placid in usage.

Asagi
noun

Asagi-iro (浅葱色) — Japanese for light-onion color — a soft pale blue-green traditional in Heian-period kimono linings and Edo-period samurai inner robes. The color refers to a fresh-dyed asagi silk: a soft, slightly cool pale blue-green with the satin finish of plant-and-mordant silk dye. Cooler than mint, lighter than seafoam.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#138c7b
Original
#85837a
Protanopia
#77787c
Deuteranopia
#008f87
Tritanopia
#717171
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon White
4.15:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.06:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##138C7B
Display P3
Display P3
color(display-p3 0.2526 0.5408 0.4839)
P3 has subtle headroomOKLCH chroma 0.101

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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